Subtracted Dispersion Relations and On-Mass-Shell Current Algebra: Pseudoscalar-Meson—Baryon Scattering Length
- 25 February 1968
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 166 (5), 1727-1731
- https://doi.org/10.1103/physrev.166.1727
Abstract
An explicit form of the source of the pseudoscalar meson field, consistent with the hypothesis of partially conserved axial-vector current, is proposed. By means of it the pseudoscalar-meson—baryon -wave scattering lengths are calculated. A close connection between the equal-time commutators of currents and the subtraction constants in dispersion relations of amplitudes is shown to exist.
Keywords
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